3661771373040 has 80 divisors (see below), whose sum is σ = 12383445015936. Its totient is φ = 887702150400.

The previous prime is 3661771372949. The next prime is 3661771373041. The reversal of 3661771373040 is 403731771663.

3661771373040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3661771373041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 693514666 + ... + 693519945.

Almost surely, 2^{3661771373040} is an apocalyptic number.

3661771373040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3661771373040 is an abundant number, since it is smaller than the sum of its proper divisors (8721673642896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3661771373040 is a wasteful number, since it uses less digits than its factorization.

3661771373040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387034638 (or 1387034632 counting only the distinct ones).

The product of its (nonzero) digits is 1333584, while the sum is 48.

The spelling of 3661771373040 in words is "three trillion, six hundred sixty-one billion, seven hundred seventy-one million, three hundred seventy-three thousand, forty".